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3 years ago

I honestly don’t know how to do this! Please help

Mathematics

2 answers:

Darya [45]3 years ago

6 0

0
G of x is the same thing as y= so find 7 on the y axis and wherever it lines up that’s the answer I think

vlada-n [284]3 years ago

5 0

0 I hope that this helps

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A person came to work at 8:30 am, went out at 11:45 am, had lunch, came in at 12:30 pm, and left at 5:15 pm. How many hours did

Vlad1618 [11]

Hello!

The person started working at 8:30 and stopped at 11:45 for lunch. That means that person worked 1 hour and 15 minutes before taking a lunch break.

The lunch break doesn't count because the person wasn't "working" then.

Next, this person worked from 12:30 to 5:15, which means they worked 4 hours and 45 minutes.

Add this up with the 1 hour and 15 minutes from before:

4 h 45 min + 1 h 15 min = 6 hours

This person worked a total of 6 hours.

8 0

3 years ago

Explain how to solve this, step by step?

andrey2020 [161]

Answer:

The cost of chair is $\$260$

The cost of a lamp is $\$65$

The cost of a table is $\$237$

Step-by-step explanation:

Let

x----> the cost of chair

y----> the cost of lamp

z----> the cost of table

we know that

$x+y+z=562$ ----> equation A

$x=4y$ -----> $y=x/4$ -----> equation B

$z=x-23$ ------> equation C

substitute equation C and equation B in equation A and solve for x

$x+(x/4)+(x-23)=562$

$(9/4)x=562+23$

$(9/4)x=585$

$x=585*4/9=\$260$

Find the value of y

$y=260/4=\$65$

Find the value of z

$z=260-23=\$237$

therefore

The cost of chair is $\$260$

The cost of a lamp is $\$65$

The cost of a table is $\$237$

7 0

3 years ago

Find the constants a and b such that the function is continuous on the entire real line

Nezavi [6.7K]

Answer:

a=-2, b=1.

Step-by-step explanation:

1) according to the condition it is required to find the equation of line, which passes through points A(-3;7) and B(4;-7);

2) the equation of this line can be made up using the formula:

$\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A};$

$\frac{x+3}{4+3} =\frac{y-7}{-7-7} ; \ < = > \ x+3=\frac{y-7}{-2}.$

3) if to re-write the last equation, then

y=-2x+1;

4) finally, a= -2; b=1.

4 0

2 years ago

PLS HELP ASAP ILL GIVE BRAINLY

dmitriy555 [2]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the table

Minutes 6 15 27

Pages 20 50 90

Given two points to find the slope

(6, 20)

(15, 50)

Finding the slope between (6, 20) and (15, 50)

Slope = m = [y₂ - y₁] / [x₂ - x₁]

= [50 - 20] / [15 - 6]

= 30 / 9

= 10/3

Thus, the slope = m = 10/3

Using the point-slope form of the linear line function

$y-y_1=m\left(x-x_1\right)$

where m is the slope of the line and (x₁, y₁) is the point

substituting the values m = 10/3 and the point (6, 20)

$y-20=\frac{10}{3}\left(x-6\right)$

Add 20 to both sides

$y-20+20=\frac{10}{3}\left(x-6\right)+20$

$y=\frac{10}{3}x-20+20$

$y=\frac{10}{3}x$

Therefore, the rule relating the minutes, x, to the number of pages, y.

$y=\frac{10}{3}x$

Determining the number of pages when the minutes equal 72

We already got the equation or rule relating the minutes, x, to the number of pages, y.

$y=\frac{10}{3}x$

substitute x = 72

$y=\frac{10}{3}\left(72\right)$

$y=\frac{720}{3}$

$y=240$

Therefore, the total pages are 240 when the minutes equal 72

7 0

3 years ago

GCF for 44 77 210 126

alexgriva [62]

The GCF for 44, 77,210, and 126 is 1 . I know this because other than one they have none of the same factors that go into each of the numbers.

Hope this helps!! Please rate em the brainliest answer!!!

5 0

3 years ago